Citrix Presentation Server 'icabar.exe' Local Privilege Escalation Vulnerability

Bugtraq ID:	30446
Class:	Design Error
CVE:	CVE-2008-3485
Remote:	No
Local:	Yes
Published:	Jul 30 2008 12:00AM
Updated:	May 07 2015 05:25PM
Credit:	Wendel Guglielmetti Henrique and Intruders Tiger Team Security
Vulnerable:	Citrix MetaFrame XP Presentation Server for Windows 1.0 Citrix MetaFrame XP for Microsoft Windows 2003 1.0 Citrix MetaFrame XP for Microsoft Windows 2000 1.0 Citrix MetaFrame XP 1.0 Citrix MetaFrame Presentation Server 3.0 Citrix MetaFrame XP - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional
Not Vulnerable:

Citrix Presentation Server 'icabar.exe' Local Privilege Escalation Vulnerability

Citrix Presentation Server (formerly Citrix MetaFrame Server) is prone to a privilege-escalation vulnerability caused by a flaw in how 'icabar.exe' is invoked via a 'Run' registry key.

Attackers can leverage this issue to execute arbitrary code with administrator privileges. Successful exploits will completely compromise affected computers.

The following products are vulnerable when running on Windows NT, Windows 2000, and Windows 2003:

Citrix MetaFrame Presentation Server 3.0 and prior
Citrix MetaFrame XP 1.0 and prior

Citrix Presentation Server 'icabar.exe' Local Privilege Escalation Vulnerability

To exploit this issue, an attacker requires write access to a directory scanned by the computer while locating 'icabar.exe'.

Citrix Presentation Server 'icabar.exe' Local Privilege Escalation Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Citrix Presentation Server 'icabar.exe' Local Privilege Escalation Vulnerability

References:

• Citrix Homepage (Citrix)
  
• Citrix MetaFrame Privilege Escalation (Wendel Guglielmetti Henrique )